There is a new threat in Ninjago, and he goes by the name of Ronin. With help from his army of dark samurai, Ronin steals the Ninjas’ memories using an ancient weapon called the Obsidian Glaive. In LEGO® Ninjago™: Shadow of Ronin on Nintendo 3DS family systems, it's up to you to help the Ninjas regain their memories and reclaim their powers, before Ronin completes his plan and releases an even greater evil on Ninjago.\n\nUncover the secret behind the mysterious Obsidian weapons and defend Ninjago from a cast of infamous enemies in an action-packed adventure. Explore Toxic Bogs, Chen's Island and other familiar locations using bikes, jets, mechs and even dragons! Use your Spinjitzu abilities to storm through enemies and puzzles alike, and team up with allies to use the multi-elemental Tornado of Creation!